Protein kinases are enzymes that catalyze phosphorylation of target proteins at specific sites, whereas protein phosphatases catalyze removal of phosphate(s) from phosphorylated proteins. Phosphorylation and dephosphorylation can function as an on-off switch for a protein's activity, most likely through
A) the change in a protein's charge leading to a conformational change.
B) the change in a protein's charge leading to cleavage.
C) a change in the optimal pH at which a reaction will occur.
D) a change in the optimal temperature at which a reaction will occur.
Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells
Substrate–level phosphorylation.
Membrane Synthesis, lipid Bilayers, Enzymes function
The complex structure of the hemoglobin protein.
Synthesis of proteins on the endoplasmic reticulum.
Connections of carbohydrate, protein, and lipid metabolic pathways